225044857 has 4 divisors (see below), whose sum is σ = 234829440. Its totient is φ = 215260276.

The previous prime is 225044839. The next prime is 225044863. The reversal of 225044857 is 758440522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225044857 - 2¹⁵ = 225012089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225084857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4892257 + ... + 4892302.

It is an arithmetic number, because the mean of its divisors is an integer number (58707360).

Almost surely, 2^225044857 is an apocalyptic number.

It is an amenable number.

225044857 is a deficient number, since it is larger than the sum of its proper divisors (9784583).

225044857 is an equidigital number, since it uses as much as digits as its factorization.

225044857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9784582.

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 225044857 is about 15001.4951588167. The cubic root of 225044857 is about 608.2606160323.

The spelling of 225044857 in words is "two hundred twenty-five million, forty-four thousand, eight hundred fifty-seven".